The whole thing scrolls in a very weird fashion. Despite only taking up around 1/6 of my screen it manages to scroll so that part of the map is hidden. The whol

The whole thing scrolls in a very weird fashion. Despite only taking up around 1/6 of my screen it manages to scroll so that part of the map is hidden. The whole thing lacks instructions on how to play, along with rules. What units do what? What does the terrain do? How is damage calculated?